Don't allow pwrite to resize a stream.

[oota-llvm.git] / lib / Support / DataStream.cpp

diff --git a/lib/Support/DataStream.cpp b/lib/Support/DataStream.cpp
index 32653de5194383549de9bb6b88b427383cca9f1f..c24315526cffc721813af7acb3f65c507c8b9bf9 100644 (file)
--- a/lib/Support/DataStream.cpp
+++ b/lib/Support/DataStream.cpp
@@ -18,8 +18,6 @@
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Support/FileSystem.h"
 #include "llvm/Support/Program.h"
-#include <cerrno>
-#include <cstdio>
 #include <string>
 #include <system_error>
 #if !defined(_MSC_VER) && !defined(__MINGW32__)
@@ -32,12 +30,12 @@ using namespace llvm;
 #define DEBUG_TYPE "Data-stream"
 
 // Interface goals:
-// * StreamableMemoryObject doesn't care about complexities like using
+// * StreamingMemoryObject doesn't care about complexities like using
 //   threads/async callbacks to actually overlap download+compile
 // * Don't want to duplicate Data in memory
 // * Don't need to know total Data len in advance
 // Non-goals:
-// StreamableMemoryObject already has random access so this interface only does
+// StreamingMemoryObject already has random access so this interface only does
 // in-order streaming (no arbitrary seeking, else we'd have to buffer all the
 // Data here in addition to MemoryObject).  This also means that if we want
 // to be able to to free Data, BitstreamBytes/BitcodeReader will implement it
@@ -56,9 +54,7 @@ class DataFileStreamer : public DataStreamer {
  int Fd;
 public:
   DataFileStreamer() : Fd(0) {}
-  virtual ~DataFileStreamer() {
-    close(Fd);
-  }
+  ~DataFileStreamer() override { close(Fd); }
   size_t GetBytes(unsigned char *buf, size_t len) override {
     NumStreamFetches++;
     return read(Fd, buf, len);